US 11,946,948 B2
Road condition detecting method and automotive system providing the same
Minwoo Lee, Whasung-Si (KR); and Kyowoong Choo, Whasung-Si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Jan. 6, 2022, as Appl. No. 17/569,858.
Claims priority of application No. 10-2021-0047530 (KR), filed on Apr. 13, 2021.
Prior Publication US 2022/0326274 A1, Oct. 13, 2022
Int. Cl. G01P 15/00 (2006.01); B60W 40/072 (2012.01); B60W 40/10 (2012.01); B60W 50/02 (2012.01); G01S 19/01 (2010.01); G08C 17/02 (2006.01)
CPC G01P 15/00 (2013.01) [B60W 40/072 (2013.01); B60W 40/10 (2013.01); B60W 50/0205 (2013.01); G01S 19/01 (2013.01); G08C 17/02 (2013.01); B60W 2520/00 (2013.01); B60W 2552/15 (2020.02); B60W 2552/35 (2020.02)] 16 Claims
OG exemplary drawing
 
1. An automotive system comprising:
an acceleration sensor configured for measuring a value of gravity acceleration acting on a vehicle;
a position measuring sensor configured for measuring a position of the vehicle,
a memory in which the measured value of the gravity acceleration and the position of the vehicle at a time point at which the gravity acceleration is measured are stored; and
a controller electrically connected to the acceleration sensor, the position measuring sensor and the memory and configured for determining a road corresponding to the position where the value of the gravity acceleration is measured as being in an abnormal condition when the controller concludes that a difference value between the value of the gravity acceleration measured during operation of the vehicle and a reference acceleration value added as a compensation value to the value of the gravity acceleration to correct the value of the gravity acceleration as a zero reference point is out of a predetermined threshold range,
wherein the controller is configured to update the reference acceleration value by adjusting a magnitude of the value of the gravity acceleration measured while the vehicle is stopped as the reference acceleration value when the vehicle satisfies a first update condition in which the vehicle is stopped for more than a predetermined reference time and a second update condition in which a slope of the road on which the vehicle is stopped is equal to or less than a predetermined reference slope.